/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.geektimes.configuration.microprofile.config.source.servlet;

import javax.servlet.ServletRequest;

import java.util.Enumeration;
import java.util.Map;
import org.eclipse.microprofile.config.spi.ConfigSource;
import org.geektimes.configuration.microprofile.config.source.MapBasedConfigSource;

/**
 * {@link ServletRequest} {@link ConfigSource}
 *
 * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
 * @since 1.0.0
 */
public class ServletRequestConfigSource extends MapBasedConfigSource {

    private ServletRequest servletRequest;

    public ServletRequestConfigSource() {
        super(String.format("servlet request config source "), 200);
    }

    @Override
    protected void prepareConfigData(Map configData) throws Throwable {
        if (servletRequest == null) {
            return;
        }

       Enumeration<String> paramNames = servletRequest.getParameterNames();
       while (paramNames.hasMoreElements()){
           String name = paramNames.nextElement();
           configData.put(name,servletRequest.getParameter(name));
       }
    }

    public ServletRequest getServletRequest() {
        return servletRequest;
    }

    public void setServletRequest(ServletRequest servletRequest) {
        this.servletRequest = servletRequest;
    }
}
